M:tG card similarity search
1R · Instant
The owner of target artifact or creature with mana value 1 or greater shuffles it into their library. Then that player discovers X, where X is its mana value. (They exile cards from the top of their library until they exile a nonland card with that mana value or less. They cast it without paying its mana cost or put it into their hand. They put the rest on the bottom in a random order.)
| Name | Mana | Type | Text |
|---|---|---|---|
| Epistolary Librarian | 2WU | Creature — Astartes Wizard | Veil of Time — Whenever Epistolary Librarian attacks, you may cast a spell with mana value X or less from your hand without paying its mana cost, where X is the number of attacking creatures. 3/4 |
| Chthonian Nightmare | 1B | Enchantment | When Chthonian Nightmare enters the battlefield, you get {E}{E}{E} (three energy counters). Pay X {E}, Sacrifice a creature, Return Chthonian Nightmare to its owner's hand: Return target creature card with mana value X from your graveyard to the battlefield. Activate only as a sorcery. |
| Emergency Powers | 5WU | Instant | Each player shuffles their hand and graveyard into their library, then draws seven cards. Exile Emergency Powers. Addendum — If you cast this spell during your main phase, you may put a permanent card with mana value 7 or less from your hand onto the battlefield. |
| Tempest Hart | 3G | Creature — Elemental Elk | Trample Whenever you cast a spell with mana value 5 or greater, put a +1/+1 counter on Tempest Hart. 3/4 |
| Goblin Tinkerer | 1R | Creature — Goblin Artificer | {R}, {T}: Destroy target artifact. That artifact deals damage equal to its mana value to Goblin Tinkerer. 1/2 |
| Karn's Touch | UU | Instant | Target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value until end of turn. (It retains its abilities.) |
| Soundwave, Superior Captain | Legendary Artifact | Whenever you cast a spell with an odd mana value, convert Soundwave. If you do, create Ravage, a legendary 3/3 black Robot artifact creature token with menace and deathtouch. Whenever you cast a spell with an even mana value, convert Soundwave. If you do, create Laserbeak, a legendary 2/2 blue Robot artifact creature token with flying and hexproof. | |
| Cerise, Slayer of Fear | 3WW | Legendary Creature — Human Cleric Knight | First strike, lifelink At the beginning of your postcombat main phase, if you gained life this turn, seek a card with the highest mana value among cards in your library with mana value less than or equal to the amount of life you gained this turn. 5/5 |
| Metamorphosis | G | Sorcery | As an additional cost to cast this spell, sacrifice a creature. Add X mana of any one color, where X is 1 plus the sacrificed creature's mana value. Spend this mana only to cast creature spells. |
| In Search of Greatness | GG | Enchantment | At the beginning of your upkeep, you may cast a permanent spell from your hand with mana value equal to 1 plus the highest mana value among other permanents you control without paying its mana cost. If you don't, scry 1. |